Effects of Condensates of Higher Dimensional Operators on Quarkonium System

梁伟红; 柳继峰; 沈彭年; 李学潜

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Effects of Condensates of Higher Dimensional Operators on Quarkonium System

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The effect of higher dimensional quark-gluon condensates on the effective quark-antiquark potential is investigated.In this scenario,cc and bb spectra are studied.It is shown that the vacuum condensates of the d=5 and d=6 operators,where d denotes the dimension of the operator,still cause notable effects.The perturbative loop contributions from the s-channel scattering and t-channel annihilation processes to the potential are almost the same.These contributions are opposite in sign to the non-perturbative contributions of the d=4 operator condensates.

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来源
《中国物理快报：英文版》 |1999年第11期|790-792|共3页
作者
梁伟红; 柳继峰; 沈彭年; 李学潜;
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作者单位

Institute of High Energy Physics;

Chinese Academy of Sciences;

Beijing 100039;

Department of Physics;

Guangxi Normal University;

Guilin 541004;

Institute of Theoretical Physics;

Chinese Academy of Sciences;

Beijing 100080;

Center of Theoretical Nuclear Physics;

National Laboratory of Heavy Ion Accelerator;

Lanzhou 730000;

Department of Physics;

Nankai University;

Tianjin 300071;

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原文格式 PDF
正文语种 chi
中图分类原子核物理学、高能物理学;
关键词
quark; operator; operators;

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Effects of Condensates of Higher Dimensional Operators on Quarkonium System

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